Question

The management of Hartman Rent-A-Car has allocated $1.92 million to buy a fleet of new automobiles consisting of compact, intermediate-size, and full-size cars. Compacts cost $16,000 each, intermediate-size cars cost $24,000 each, and full-size cars cost $32,000 each. If Hartman purchases twice as many compacts as intermediate-size cars and the total number of cars to be purchased is 100, determine how many cars of each type will be purchased. (Assume that the entire budget will be used. Let x, y, and z denote the number of compact, intermediate-sized, and full-size cars purchased, respectively.)

I know x+y+z=100 and 16000x+24000y+32000z=1920000, but what would be the equation for x=?

Answer 1

x = 2 y twice as many compacts as intermediates